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Finding the Fourth Proportional to 247,006.80, 370,607.40 and 97,221.60

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Solution

The fourth proportional to 247,006.80, 370,607.40 and 97,221.60 is: 145,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,006.80 : 370,607.40 = 97,221.60 : x
  2. Step 2: Convert to fraction form
    247,006.80/370,607.40 = 97,221.60/x
  3. Step 3: Cross multiply
    247,006.80x = 370,607.40 × 97,221.60
  4. Step 4: Simplify right side
    247,006.80x = 36,031,044,399.84
  5. Step 5: Solve for x
    x = 36,031,044,399.84/247,006.80
  6. Step 6: Final answer
    x = 145,870.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.